Home / 37,618.96-51,911.40-20,620.48

Finding the Fourth Proportional to 37,618.96, 51,911.40 and 20,620.48

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Solution

The fourth proportional to 37,618.96, 51,911.40 and 20,620.48 is: 28,454.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,618.96 : 51,911.40 = 20,620.48 : x
  2. Step 2: Convert to fraction form
    37,618.96/51,911.40 = 20,620.48/x
  3. Step 3: Cross multiply
    37,618.96x = 51,911.40 × 20,620.48
  4. Step 4: Simplify right side
    37,618.96x = 1,070,437,985.47
  5. Step 5: Solve for x
    x = 1,070,437,985.47/37,618.96
  6. Step 6: Final answer
    x = 28,454.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.